If electrons fall back down to the 2nd energy level, what type of electromagnetic radiation is released?

"between energy, electron position and the emission of electromagnetic energy. However, it is ... From that excitation state, the electron can then drop back down, releasing a photon with a predictable amount of energyin the process."

Idon’t know what the answer is i wish i could

Polyethylene is a strong synthetic polymer that can be used to make toys and bottles. polyethylene is a plastic material called thermoplastic. one very useful property of thermoplastic is that when it is heated it turns into liquid, which can be molded into desired shape and size. also the material do not dissolve at room temperature.